| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [verb] been used for | 14 |
|
| 2 | that [verb] [be] used for | 14 |
|
| 3 | that have [be] used for | 14 |
|
| 4 | that [verb] be used for | 14 |
|
| 5 | that [verb] [been] used for | 14 |
|
| 6 | that [vb -s] [be] used for | 8 |
|
